======================================
| [  111.831229][  T841] ==================================================================
| [  111.831581][  T841] BUG: KASAN: null-ptr-deref in try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
| [  111.831911][  T841] Write of size 8 at addr 0000000000000000 by task ip/841
| [  111.832180][  T841]
[  111.832303][  T841] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  111.832306][  T841] Call Trace:
[  111.832309][  T841]  <TASK>
[  111.832312][  T841]  dump_stack_lvl (lib/dump_stack.c:123)
[  111.832326][  T841]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  111.832330][  T841]  kasan_report (mm/kasan/report.c:597)
[  111.832338][  T841]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  111.832345][  T841]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[  111.832351][  T841]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  111.832355][  T841]  ? __ipv6_dev_mc_dec (net/ipv6/mcast.c:1008)
[  111.832361][  T841]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[  111.832364][  T841]  ? enable_delayed_work (kernel/workqueue.c:4359)
[  111.832367][  T841]  ? br_multicast_leave_snoopers (net/bridge/br_multicast.c:4220) bridge
[  111.832429][  T841]  ? br_multicast_join_snoopers (net/bridge/br_multicast.c:4220) bridge
[  111.832461][  T841]  __cancel_work_sync (kernel/workqueue.c:4383)
[  111.832465][  T841]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[  111.832472][  T841]  ? netdev_notify_peers (net/core/dev.c:1891)
[  111.832477][  T841]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[  111.832481][  T841]  __dev_change_flags (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1945 net/core/dev.c:9924)
[  111.832484][  T841]  ? find_held_lock (kernel/locking/lockdep.c:5343)
[  111.832488][  T841]  ? netif_set_allmulti (net/core/dev.c:9890)
[  111.832491][  T841]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  111.832497][  T841]  netif_change_flags (net/core/dev.c:9989)
[  111.832501][  T841]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[  111.832507][  T841]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[  111.832513][  T841]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  111.832517][  T841]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[  111.832522][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.832527][  T841]  ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113)
[  111.832531][  T841]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[  111.832534][  T841]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  111.832538][  T841]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  111.832542][  T841]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[  111.832545][  T841]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[  111.832553][  T841]  ? __create_object (mm/kmemleak.c:786)
[  111.832558][  T841]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  111.832562][  T841]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  111.832565][  T841]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[  111.832568][  T841]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[  111.832577][  T841]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[  111.832582][  T841]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  111.832587][  T841]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  111.832590][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.832596][  T841]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  111.832600][  T841]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  111.832603][  T841]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  111.832607][  T841]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  111.832610][  T841]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  111.832614][  T841]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  111.832616][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.832628][  T841]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  111.832638][  T841]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  111.832642][  T841]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  111.832648][  T841]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  111.832651][  T841]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[  111.832655][  T841]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  111.832659][  T841]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  111.832663][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.832669][  T841]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  111.832674][  T841]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  111.832678][  T841]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  111.832690][  T841]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  111.832695][  T841]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  111.832702][  T841]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  111.832705][  T841]  ? __copy_msghdr (net/socket.c:2556)
[  111.832713][  T841]  ___sys_sendmsg (net/socket.c:2686)
[  111.832716][  T841]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[  111.832719][  T841]  ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3125)
[  111.832725][  T841]  ? copy_msghdr_from_user (net/socket.c:2673)
[  111.832730][  T841]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  111.832735][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.832740][  T841]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  111.832744][  T841]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[  111.832751][  T841]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  111.832757][  T841]  __sys_sendmsg (net/socket.c:2716)
[  111.832761][  T841]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[  111.832765][  T841]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  111.832772][  T841]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  111.832776][  T841]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  111.832782][  T841]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  111.832786][  T841] RIP: 0033:0x7f8d52a091d7
[  111.832794][  T841] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  111.832797][  T841] RSP: 002b:00007ffd534779a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  111.832801][  T841] RAX: ffffffffffffffda RBX: 00007ffd534780d0 RCX: 00007f8d52a091d7
[  111.832803][  T841] RDX: 0000000000000000 RSI: 00007ffd53477a10 RDI: 0000000000000005
[  111.832805][  T841] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  111.832807][  T841] R10: 00007f8d52905f60 R11: 0000000000000246 R12: 0000000000000003
[  111.832809][  T841] R13: 00000000691cd6b5 R14: 0000000000499600 R15: 0000000000000000
| [  111.852499][  T841] #PF: error_code(0x0002) - not-present page
| [  111.852732][  T841] PGD f451067 P4D f451067 PUD f452067 PMD 0
| [  111.852965][  T841] Oops: Oops: 0002 [#1] SMP KASAN
| [  111.853537][  T841] Tainted: [B]=BAD_PAGE
[  111.853688][  T841] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  111.853925][  T841] RIP: 0010:try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  111.854166][  T841] Code: 00 41 89 c0 b8 01 00 00 00 45 85 c0 74 0f 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 be 08 00 00 00 48 89 df e8 7f 7f 81 00 <f0> 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
All code
========
   0:	00 41 89             	add    %al,-0x77(%rcx)
   3:	c0 b8 01 00 00 00 45 	sarb   $0x45,0x1(%rax)
   a:	85 c0                	test   %eax,%eax
   c:	74 0f                	je     0x1d
   e:	48 83 c4 10          	add    $0x10,%rsp
  12:	5b                   	pop    %rbx
  13:	5d                   	pop    %rbp
  14:	41 5c                	pop    %r12
  16:	41 5d                	pop    %r13
  18:	41 5e                	pop    %r14
  1a:	41 5f                	pop    %r15
  1c:	c3                   	ret
  1d:	be 08 00 00 00       	mov    $0x8,%esi
  22:	48 89 df             	mov    %rbx,%rdi
  25:	e8 7f 7f 81 00       	call   0x817fa9
  2a:*	f0 48 0f ba 2b 00    	lock btsq $0x0,(%rbx)		<-- trapping instruction
  30:	72 11                	jb     0x43
  32:	48 83 c4 10          	add    $0x10,%rsp
  36:	31 c0                	xor    %eax,%eax
  38:	5b                   	pop    %rbx
  39:	5d                   	pop    %rbp
  3a:	41 5c                	pop    %r12
  3c:	41 5d                	pop    %r13
  3e:	41 5e                	pop    %r14

Code starting with the faulting instruction
===========================================
   0:	f0 48 0f ba 2b 00    	lock btsq $0x0,(%rbx)
   6:	72 11                	jb     0x19
   8:	48 83 c4 10          	add    $0x10,%rsp
   c:	31 c0                	xor    %eax,%eax
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	41 5c                	pop    %r12
  12:	41 5d                	pop    %r13
  14:	41 5e                	pop    %r14
[  111.854826][  T841] RSP: 0018:ffffc90001146f40 EFLAGS: 00010046
[  111.855073][  T841] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffafe4090a
[  111.855364][  T841] RDX: fffffbfff680f2cd RSI: 0000000000000008 RDI: ffffffffb4079660
[  111.855631][  T841] RBP: ffffc90001146fa8 R08: 0000000000000001 R09: fffffbfff680f2cc
[  111.855902][  T841] R10: ffffffffb4079667 R11: ffffc90001146a00 R12: 0000000000000000
[  111.856185][  T841] R13: 0000000000000282 R14: ffff88800291a000 R15: dffffc0000000000
[  111.856471][  T841] FS:  00007f8d5283b800(0000) GS:ffff8880821f2000(0000) knlGS:0000000000000000
[  111.856785][  T841] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  111.857017][  T841] CR2: 0000000000000000 CR3: 000000000f704006 CR4: 0000000000772ef0
[  111.857300][  T841] PKRU: 55555554
[  111.857449][  T841] Call Trace:
[  111.857582][  T841]  <TASK>
[  111.857681][  T841]  ? __ipv6_dev_mc_dec (net/ipv6/mcast.c:1008)
[  111.857871][  T841]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[  111.858070][  T841]  ? enable_delayed_work (kernel/workqueue.c:4359)
[  111.858246][  T841]  ? br_multicast_leave_snoopers (net/bridge/br_multicast.c:4220) bridge
[  111.858517][  T841]  ? br_multicast_join_snoopers (net/bridge/br_multicast.c:4220) bridge
[  111.858787][  T841]  __cancel_work_sync (kernel/workqueue.c:4383)
[  111.858974][  T841]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[  111.859158][  T841]  ? netdev_notify_peers (net/core/dev.c:1891)
[  111.859352][  T841]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[  111.859526][  T841]  __dev_change_flags (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1945 net/core/dev.c:9924)
[  111.859719][  T841]  ? find_held_lock (kernel/locking/lockdep.c:5343)
[  111.859890][  T841]  ? netif_set_allmulti (net/core/dev.c:9890)
[  111.860090][  T841]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  111.860274][  T841]  netif_change_flags (net/core/dev.c:9989)
[  111.860464][  T841]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[  111.860644][  T841]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[  111.860829][  T841]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  111.861017][  T841]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[  111.861206][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.861406][  T841]  ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113)
[  111.861581][  T841]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[  111.861770][  T841]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  111.861953][  T841]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  111.862139][  T841]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[  111.862329][  T841]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[  111.862512][  T841]  ? __create_object (mm/kmemleak.c:786)
[  111.862708][  T841]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  111.862879][  T841]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  111.863068][  T841]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[  111.863252][  T841]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[  111.863447][  T841]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[  111.863677][  T841]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  111.863876][  T841]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  111.864063][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.864252][  T841]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  111.864449][  T841]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  111.864627][  T841]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  111.864815][  T841]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  111.865010][  T841]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  111.865196][  T841]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  111.865386][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.865563][  T841]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  111.865754][  T841]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  111.865934][  T841]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  111.866129][  T841]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  111.866313][  T841]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[  111.866496][  T841]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  111.866681][  T841]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  111.866858][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.867052][  T841]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  111.867248][  T841]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  111.867449][  T841]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  111.867640][  T841]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  111.867823][  T841]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  111.868013][  T841]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  111.868238][  T841]  ? __copy_msghdr (net/socket.c:2556)
[  111.868435][  T841]  ___sys_sendmsg (net/socket.c:2686)
[  111.868614][  T841]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[  111.868807][  T841]  ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3125)
[  111.869163][  T841]  ? copy_msghdr_from_user (net/socket.c:2673)
[  111.869357][  T841]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  111.869530][  T841]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  111.869725][  T841]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  111.870022][  T841]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[  111.870205][  T841]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  111.870406][  T841]  __sys_sendmsg (net/socket.c:2716)
[  111.870582][  T841]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[  111.870921][  T841]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  111.871118][  T841]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  111.871301][  T841]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  111.871489][  T841]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  111.871830][  T841] RIP: 0033:0x7f8d52a091d7
[  111.872041][  T841] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  111.872823][  T841] RSP: 002b:00007ffd534779a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  111.873113][  T841] RAX: ffffffffffffffda RBX: 00007ffd534780d0 RCX: 00007f8d52a091d7
[  111.873504][  T841] RDX: 0000000000000000 RSI: 00007ffd53477a10 RDI: 0000000000000005
[  111.873782][  T841] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  111.874064][  T841] R10: 00007f8d52905f60 R11: 0000000000000246 R12: 0000000000000003


Finger prints:
try_to_grab_pending:__cancel_work:__cancel_work_sync:__dev_close_many:__dev_change_flags
kasan_report:kasan_check_range:try_to_grab_pending:__cancel_work:__cancel_work_sync